/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.kie.workbench.common.stunner.core.graph.content.view;

import java.util.OptionalInt;

/**
 * Connections given by discrete indexes.
 */
public abstract class DiscreteConnection implements Connection {

    private transient OptionalInt index;

    protected DiscreteConnection(final int index) {
        this.index = OptionalInt.of(index);
    }

    protected DiscreteConnection() {
        this.index = OptionalInt.empty();
    }

    public abstract boolean isAuto();

    public OptionalInt getMagnetIndex() {
        return index;
    }

    public void setIndex(final int i) {
        setOptionalIndex(OptionalInt.of(i));
    }

    protected void setOptionalIndex(final OptionalInt i) {
        this.index = i;
    }
}
